Vietnam Journal of Catalysis and Adsorption

RESEARCH PAPER

open access logo 200x200Liquid Oxidation of Styrene Mg-Cu-Al Layered Double Hydroxide Catalysts

Le Thi Kim Huyen1,2, Tran Le Huy1, Nguyen Tien Thao1,This email address is being protected from spambots. You need JavaScript enabled to view it.

1Faculty of Chemistry, VNU University of Science, Vietnam National University Hanoi
2Mien Trung Industry and Trade College

ABSTRACT

A set of CuxMg0.7-xAl0.3(OH)2(CO3)0.15.mH2O hydrotalcite-like compounds were synthesized by the co-precipitation technique at a certain pH. The synthesized samples have been characterized by some physical means of XRD, FT-IR, TEM, EDS and BET prior to use as a catalyst for the liquid oxidation of styrene with aqueous tert-butyl hydrogen peroxide (TBHP) oxidant. The synthesized samples show good hydrotalcite structure and with the presence of Cu(II) ions in layered Mg-Al hydroxides. Under similar reaction conditions, MgCuAl-CO3 layered double hydroxide catalysts exhibited good activity and high selectivity towards styrene oxide (75% selectivity at 73% styrene conversion) as compared with the MgAl-CO3, CuO/MgAl-CO3, and mixed oxides of MgCuAl-O.

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